TIME: Three-dimensional Input, Modification and Evaluation

Video demonstration from the 1996 CHI conference. Simple intuitive manipulation of three-dimensional objects is needed for the conceptualizing phase of design. Present CAD systems do not allow for the quick and interactive generation and development of objects, which are based more on free-form ideas than on hard numerical input. This video presents a prototype envisiomnent that uses intuitive 3D sketch input with two hands. Author(s): Maarten Gribnau & Gert Pasman